Climbers

My toddlers are climbers. I can't stop them. How long can they live in time out? How long can I live with the climbing? Any little thing they can wrap their toes around is a climbing tool. Cabinet knobs, edges and ledges, toys, moulding, her sister's head, leg, trunk, arms, legs. If they aren't in time out, their toys, chairs, etc. are. Two girls, two years and 7 months old, strong and strong-willed. What's a mommy to do??